dockerized cinema app

.dockerignore

@@ -0,0 +1,10 @@
+.idea/
+.vscode/
+*.iml
+.env
+.DS_Store
+venv/
+.pytest_cache/
+**__pycache__/
+**db.sqlite3
+media

Dockerfile

@@ -0,0 +1,19 @@
+FROM python:3.10-slim
+
+ENV PYTHONUNBUFFERED=1
+WORKDIR /app
+
+COPY requirements.txt requirements.txt
+RUN pip install -r requirements.txt
+
+COPY . .
+RUN mkdir -p /app/media
+RUN adduser \
+    --disabled-password \
+    --no-create-home \
+    my_user
+RUN chown -R my_user /app/media
+RUN chmod -R 755 /media
+
+
+USER my_user

cinema/management/commands/wait_for_db.py

@@ -0,0 +1,29 @@
+import time
+from django.core.management.base import BaseCommand
+from django.db import connections
+from django.db.utils import OperationalError
+
+
+class Command(BaseCommand):
+    """Wait for db connection"""
+
+    def handle(self, *args, **options):
+        self.stdout.write("Checking database connection...")
+
+        db_conn = None
+        attempts = 0
+        while not db_conn and attempts < 15:
+            try:
+                db_conn = connections["default"]
+                db_conn.cursor()
+            except OperationalError:
+                attempts += 1
+                self.stdout.write(
+                    f"DB is not ready(attempt {attempts}/15)... "
+                    f"Wait for 2 seconds."
+                )
+                time.sleep(2)
+            else:
+                self.stdout.write(
+                    self.style.SUCCESS("DB is ready, continue...")
+                )

cinema/migrations/0002_alter_movie_actors_alter_movie_genres_and_more.py

@@ -0,0 +1,41 @@
+# Generated by Django 6.0.5 on 2026-05-24 18:40
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cinema', '0001_initial'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='movie',
+            name='actors',
+            field=models.ManyToManyField(blank=True, related_name='movies', to='cinema.actor'),
+        ),
+        migrations.AlterField(
+            model_name='movie',
+            name='genres',
+            field=models.ManyToManyField(blank=True, related_name='movies', to='cinema.genre'),
+        ),
+        migrations.AlterField(
+            model_name='moviesession',
+            name='cinema_hall',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='movie_sessions', to='cinema.cinemahall'),
+        ),
+        migrations.AlterField(
+            model_name='moviesession',
+            name='movie',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='movie_sessions', to='cinema.movie'),
+        ),
+        migrations.AlterField(
+            model_name='order',
+            name='user',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to=settings.AUTH_USER_MODEL),
+        ),
+    ]

cinema_service/settings.py

@@ -9,6 +9,7 @@
 For the full list of settings and their values, see
 https://docs.djangoproject.com/en/4.0/ref/settings/
 """
+import os
 from datetime import timedelta
 from pathlib import Path
 
@@ -27,8 +28,8 @@
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
 
-ALLOWED_HOSTS = []
-
+ALLOWED_HOSTS = ["127.0.0.1"]
+STATIC_ROOT = BASE_DIR / "staticfiles"
 INTERNAL_IPS = [
     "127.0.0.1",
 ]
@@ -86,8 +87,12 @@
 
 DATABASES = {
     "default": {
-        "ENGINE": "django.db.backends.sqlite3",
-        "NAME": BASE_DIR / "db.sqlite3",
+        "ENGINE": "django.db.backends.postgresql",
+        "NAME": os.environ["POSTGRES_DB"],
+        "USER": os.environ["POSTGRES_USER"],
+        "PASSWORD": os.environ["POSTGRES_PASSWORD"],
+        "HOST": os.environ["POSTGRES_HOST"],
+        "PORT": os.environ["POSTGRES_PORT"],
     }
 }
 

docker-compose.yaml

@@ -0,0 +1,27 @@
+services:
+  app:
+    build:
+      context: .
+    env_file:
+      - .env
+    ports:
+      - "8000:8000"
+    volumes:
+      - my_media:/app/media
+    command:
+      sh -c "python manage.py wait_for_db && python manage.py makemigrations && python manage.py migrate && python manage.py runserver 0.0.0.0:8000"
+    depends_on:
+      - db
+
+  db:
+    image: postgres:16.0-alpine3.17
+    restart: always
+    env_file:
+        - .env
+    ports:
+      - "5432:5432"
+    volumes:
+        - my_db:$PGDATA
+volumes:
+  my_db:
+  my_media:

requirements.txt

@@ -1,10 +1,28 @@
-django
-flake8
-flake8-quotes
-flake8-variables-names
-pep8-naming
-django-debug-toolbar
-djangorestframework
-djangorestframework-simplejwt
-drf-spectacular
-Pillow
+asgiref==3.11.1
+attrs==26.1.0
+Django==4.2.15
+django-debug-toolbar==6.3.0
+djangorestframework==3.17.1
+djangorestframework_simplejwt==5.5.1
+drf-spectacular==0.29.0
+flake8==7.3.0
+flake8-quotes==3.4.0
+flake8-variables-names==0.0.6
+inflection==0.5.1
+jsonschema==4.26.0
+jsonschema-specifications==2025.9.1
+mccabe==0.7.0
+pep8-naming==0.15.1
+pillow==12.2.0
+psycopg==3.3.4
+psycopg-binary==3.3.4
+pycodestyle==2.14.0
+pyflakes==3.4.0
+PyJWT==2.13.0
+PyYAML==6.0.3
+referencing==0.37.0
+rpds-py==0.30.0
+setuptools==82.0.1
+sqlparse==0.5.5
+tzdata==2026.2
+uritemplate==4.2.0